Improvement in telegraph - sounders



H. C. BUYER. Telegraph-Sounders.

N0,14Q,527, PatentedApr'il 7,1874,

UNITED STATES PATENT CFFICE.

HENRY C. ROYER, OF CLEVELAND, OHIO.

IMPROVEMNT IN TELEGRAPH SOUNDERS.

Specification forming part of Letters Patent No. 149,527, dated April 7, 1874; application tiled March 3, 1874.

T0 all whom t may concern:

Be it known that I, HENRY C. ROYER, of Cleveland, in the county of Cuyahoga and State of Ohio, have invented certain new and useful Improvements in Sounders for Telegraph-Instruments, of which the following is a speeitication:

rlhe present invention has reference to teleg aphic sounders, in order to render the same more simple in construction and efficacious in use than others heretofore constructed 5 and to this end the -invention consists in the employment of a hinged or vibrating electro-magnet, composed of a core and surrounding helix, and having a core projecting at each end, 011e end being pivoted to one arm of a bent iron base-plate, while the other end bears au armature, which is brought into contact with the other arm of the base-plate by the action ot' magnetism in order to produce the desired sound.

In the accompanying drawings, Figure l is a side elevation of a sounder constructed aecording to my invention. Fig. 2 is a longitudin al section ofthe same, representin g the hin ged magnet, its core, sounding-post, and armature. Fig. 3 is an end view.

The letter A designates an electro-magnet, which is composed of the helix or covering and the solid core B, the latter bein g extended beyond the heads of the helix, and pivoted at one end to a vertical arm, C, of a metal baseplate, D, as shown at E, while the opposite or free end extends into a slotted or recessed sounding column or post, F. The free end of the fixed core ol the magnet carries an armature, G, which operates in connection with a corresponding armature or anvil, H, applied to the vertical or rising arm I of the metal base-plate I), which is located subjacent to or within the sounding-post F. At or near the fulcruin-point of the vibrating magnet therev is located a coiled cr other suitable spring, K, the upper end of which enters a recess, a, in the ixed core B, through which passes also a regulating-screw, L, bearing upon the apex of the spring. The binding-posts and screws c d, mounted on the base-frame of the instrument, receive the electric conductii'ig-wires e from the battery, and from thence they are conducted to the helix of the electro-magnet. By magnetizing the core of the magnet through the medium ofthe surrounding helix, the resistance of the spring, which has hitherto held the magnet in an elevated position, will be overcome, causing the two armatures to approach each other, producing one sound, and when the circuit through the core is broken the magnet is thrown upward by the action of the spring, producing the secondary sound.

An electro-magnet pivoted and vibrating as described is easily iniiuenced by the electric current, and the movement of the magnet in a downward direction against the pressure of the spring is greatly assisted, in addition to the force exerted by the electric current, by the weight or gravity of the magnet itself.

The degree of motion ot' the magnet is dcfmed by means of a regulating-screw, L, and nut M, the former passing through the top ot' the sounding-post into the space occupied by the projecting end of the iixed core of the magnet. By adjusting the screw, to project the same more or less into the slotted soundingpost, the extent of the motion or throw of the magnet is varied, thus producing a sound of a greater or less duration. A corresponding adjustment is imparted to the spring, for varying the tension of the same, to cause it to conform to the position of the regulating-screw of the sounding-post, by means of the reguating-screw combined with said spring. The end of the cere of the magnet which projects into the sounding-post will be guided in its motion by the same, and the arma-turc carried by said core is also retained or guided properly, to prevent lateral motion, by means ci' and the screw L passing directly through such end, substantially as described.

In testimony that I olaini the foregoing I have hereunto set my hand this 21st day of February, 1874.

HENRY C. ROYER'.

YVitnesses:

JOHN LENNOX, E. H. PERDUE. 

